aspheric lens

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a·spher·ic lens

a lens with a paraboloidal surface that eliminates spheric aberration.
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Lens optics are constructed with one ED glass and four aspherical lens elements.
By combining a large-aperture aspherical lens and the newly developed focus/zoom system.
This high image quality is made possible thanks to its advanced optical design featuring four aspherical lens elements, two of which are high precision AA (advanced aspherical) lenses.
The authors described significantly higher contrast sensitivity and decreased aberrations in the aspherical lens.
Early optics experts discovered that using an aspherical lens in the microscope immediately improved performance by eliminating those spherical aberrations, or the loss of image definition.
The glass is ground and polished to create an aspherical lens. This specific shape and surface are complex, but optimal for optics.
three aspherical lens elements and two ED lens elements.
It uses Sony CMOS sensor and seven-element aspherical lens technology.
The lens unit was realized with HOYA's technology in glass lens molding for aspherical lens, and optical design and manufacturing for compact camera lens unit.
The aspherical lens adopted to enhance the lens' focus is made of high -- transmission, low -- dispersion materials and features a nano -- scale, anti -- reflection coating.
The housing is a rugged, lightweight magnesium alloy, and the aspherical lens is treated with DiamondCoat for superior scratch resistance and provides a wide field of view and excellent image quality--with unlimited eye relief.
Aspherical lens doubles the intensity of the received laser reflection.